Improvement in pendulum-levels and sights combined



' To ALL wHoM IT MAY condities;v

, -uiih ffgg @anni GHAR'LESMORRJL'I., 0F NEW YORK, npr-.

Lagers Patent Nt.I 63,807, daad .413ml 1 6, 1867.

IMPRQVEMBNT nl PENDULUM-Lrvrts AND sieurs comme.

die 561mb infami ta in tiges: Erfurt atctt ant' uniting' um' tf thesame. I

Be it known that I, CHA'RIS,MORRILI.,l of the city, county, and State ofNew York, have invented-a new i vand .useful Plumb-Rule, Level, andGlobe-Sight Combined; und I do hereby declare that thefollowingisa'full, clear', andexact description ofthe same, reference being bad tothe accompanying drawing forming part o f this specification, in which--Figure 1 is a side elevation of my invention.

Figure 2-is a plan'e or top view of the same.

Figure 3 is-a section taken on the plane of the linel :c x, iig. 1.

Figure 4 is anedge view of the swinging frame. 1

Similarletters of reference indicate like parts in all the figures. i Myinvention relates to an instrument in which is combined a plumb-rule fordetermining 4vertical lines, a -level 4f orjdetermining inclinations orbevels, and a globe-sight for determining grades, planes, dto., die.. E,

Y The invention consists in the combination of a pivoted frame,carryinga swinging bob or pendnll), with a rule ostock; also in thecombination withsueh plumbrule of globe-sight also inmeans forcontrolling the swinging frame. i

A designates the stock of the instrument; and this is of metaL'a'nd yhasa plane face, and,vfoifcorrvqnience, carries a central iange, a, towhich are attached two args YIB B', whiclrlatter projectupwardfroiutlils stack A. C is a frame, in the presentv instance heart-lshaped, -whicli'- is pivoted to, or hung betwen',`twoa1fms in'suchvdivided oli into degrees inthe usual manner. From thefupp'er part of"the fratrie;I C .thereis pendent al swinging bob or pendulum, D, whichis so hung ,that it will` have a lateral play in the freine... .Its'lower'end is .weighted or made 'heavier than the yother part of it;' audthis heavier 'partcariea an index, b, which, when ythebob is swung, runsalong the scale lc, and indicates the degree of inclination or 'bevel.of the` article uPOnor a ainsi which the instrumentis placed. ,The bobiscontrolled, or. prevented havingV other than -a llateral motiongby arib, d, extending ,along-'tbe inner side4 or surface of the frame C, onVeach Vside of which a portion ai' this `bob slides. A setscrew,rH,passes through one o f' the arms B, so that its point will're'st in arecess, f, out trans versely across the frame CfThis will allow theframe Cto have Va slight motion Atoimd fro,.and no morej' `but, when itis desired to give the fratrie a greater play, the point of 'the screwmay be withdrawn fron the recessf, when thefrmne will` be entirely free.At one end of the stock A there is secured a standard, K, to. which isaiiixcd anfeye-pece, E; and at the other end there is secured a`standard, L, which carries a bead-sight, G. In

this way the plumb-rule is provided witha globe-sight; and, where the'use of 'such instrument is not required,

the samelcan beiremoved.

The instrument answers the, following purposes: First, an ordinarypluulbrnle is provided; second, an equivalent for a 'spirit-level isprovided; third, asan indicator of gradesfend in'clines fourth, thelevel of an inverted surface, suoli as the top of a door-way 'or window,may be ascertained by releasing the swinging frame,

when itwill vassume a position' exactly 'the reverse i' that. showninthe drawing, und .thus indicatethe degree of inclination of suchsurface. i f What I claim as my invention, and desire to secure byLetters Pa','tent,-.is-

1.' The combination of a swinging frame, C, with a suitablelstock, A,substantially as herein specified. 2. The'combination of the swingingframe C, `stock A, andarms B, substantially as .herein speciiied.

8. The combination of the set-screw H n'itbon'e of the arms B andswinging frame C, substantially herein specified.

l 4. The combinationotthe globe-sigbtE G with the stock A and swingingframe C, substantiallyas and fior tho-purposes herein specified.v

5. The bob or pendulum D, with the graduated swinging 'frame C, whensuch bob is pivoted at its upper end to theupper part of said swingingframe, substantially as shown and described.

6. Providing theinnersnrface of the swinging frame C with a rib, d, andconstructing the lower end of the bob or pendulum conformably thereto,for the purpose of allowing the bob or pendulum none but the requiredmotion.

oms. MORRILL Witnesses:

O, W.' CHILD. Enwn. Parson'.

